The correct answer is: A. Compiler
A compiler is a computer program that translates code written in a high-level programming language into machine code, which is a set of instructions that a computer’s processor can understand and execute.
An assembler is a program that translates assembly language into machine code. Assembly language is a low-level programming language that is specific to a particular type of computer architecture.
A comparator is a device that compares two values and produces a result indicating whether the first value is greater than, equal to, or less than the second value.
None of the other options are correct.